Improvement in corn-plows



L. MILLER.;

CORN-PLOW'.

Patented March 28,1876.

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' with said hinged arms,

arm is secured to the UNITED ,STATES- PATENT @erica LEWIS MILLER, 0F RICHMOND, INDIANA.

IMPROVEMENT IN CORN-FLOWS.

Specification forming part of Letters Patent No. 175,251, dated March 28, 1876 application filed I January 24, 1876.

To all whom z't may concern Be it known that I, LEWIS MILLER, of Richmond, Indiana, have invented certain new and useful Improvements in Corn-Plows and I hereby declare the following to be a full, clear description of the same, reference being ha-d to the drawings which accompany this specification, forming a part of the same, and to the letters of reference marked thereon, in which Figure 1 is a perspective `view of my improvement,'and Fig. 2 is an elevation of the clutch-plate with the standard and hoe at tached.

Like letters of reference represent like parts.

To enable those skilled in the art t make and use `my said invention, I will proceed to describe Jthe same. p

The nature ot' my invention consists in the application to the beam of hinged arms, having a forward or a backward motion on the beam, and also a vertical motion, and :held in any desired position by a set-screw also, in the-employment of circular plates connected by which the outer said hinged arms, and by meaus of a slot in said circular plate a backward motion is allowed in connection with the vertical motion resulting from the hinged arm, as connected with the beam also, 1n hinging the frame of the handles upon the beam in such a manner as to allow an independent lateral motion ot' the handles to any angle that may be desired.

In thedrawings, in Fig. 1, A is va round shaft or beam. B B are ordinary handles, attached to the beam by clutch-couplings 0 O, clamped and retained in position by setscrews and nuts. By relaxing these screws the handles may be given any desired angle from a perpendicular position. The rear clutchcoupling is extended up to form supports C C for the handles, and these supports are provided with holes to allow the handles to beraised and lowered at will, these couplings also allowing a fore-and-aft movement of the handles on the beam A. F F are shovels of ordinary construction, attached to standards G G, which are secured to arms D D', and held in position by setscrews d d through the agency ot' circular plates E E, which connect the arms D D with corresponding arms D D, the latter being hinged upon the beam A, and thus allowing any degree ot' vertical motion to the said arms and to the hoes attached. The circular plates E E are each composed of two disks, one of which sustains the arm D, and its fellow sustains the continuous arm D. A screw-bolt, i, with its nut, near the periphery, secures these plates to each other, and a circular slot in one plate, corresponding with a hole in the other plate, said hole being supplied with a pin of wood or other suitable material, allows a swinging motion backward and upward of the standard G, whenever the hoe F meets any obstruction with force sufficient to break the pin. This is illustrated by the dotted lines in Fig. 2, in which the slot, the standard, and the hoe are fully shown.

It will be seen that, by means ot' the compound motion of theearms D and D', any desirable angle can be obtained for thehoes, both vertical and horizontal. Both hoes can be set to run in one furrow, or only one hoe used, or both may be detached and a bull-tongue 7 or subsoil plow attached. The standards G G are round and fitted into the arms D, where they are held in any desired angle by means of set-screws.

Having thus fully described my saidinveution, what I claim isl. The arrangement and combination of the arms D D, circular plates E, slot E', and arms D' D', in the manner and for the purpose set forth.

2. The clutches O O, braces C O, and handles B B, in combination with the beam A, as herein set forth:

LE WIS MILLER.

Witnesses:

JOHN DENNIS, W. T. DENNIS. 

